* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font: 16px/1.5"MicrosoftYahei", "Hiragino Sans GB", "Heiti sc", "WenQuanYi Micro Hei", sans-serif;
    color: #333;
}

ul,
ol {
    list-style: none;
}

em,
i {
    font-style: normal;
}

a {
    text-decoration: none;
    color: #333;
}

img {
    width: 100%;
    height: 100%;
    vertical-align: middle;
}

input {
    outline: none;
    border: none;
}

h1,
h2,
h3,
h4,
h5 {
    font-weight: 400;
}